@RequestMapping(value = "/save", method = RequestMethod.POST) public String examSave(HttpServletRequest req,HttpSession session,String title, String type, String uid, String created, String oth, Model model) { Exam modelX = new Exam(); modelX.setTitle(title); modelX.setType(type); modelX.setUid(session.getAttribute("userid").toString()); modelX.setCreated(MainUtils.getTime()); modelX.setOth(oth); examService.insert(modelX); String[] vals = req.getParameterValues("option"); System.out.println(vals); for (String string : vals) { Examques eq = new Examques(); eq.setExamid(modelX.getId()+""); eq.setQuesid(string); eq.setAdddate(MainUtils.getTime()); examquesService.insert(eq); } model.addAttribute("inpost", true); model.addAttribute("message", "创建问卷成功!"); return "admin/exam/add"; }

详解使用@RequestBody取POST方式的json字符串

@RequestMapping(value = "/{name}", method = RequestMethod.POST, produces = "application/json;charset=utf-8;") @ResponseBody public String postDashboardItem( @PathVariable("name") String name, @...

简化版@requestmapping注解注册源码

2. **请求方法**：通过method属性，可以限制只接受特定类型的HTTP请求，如@RequestMapping(value="/users", method=RequestMethod.GET)。 3. **参数绑定**：@RequestParam、@PathVariable、@Matrix...

@RequiredArgsConstructor @Controller public class LoginController { private final LoginService loginService; @RequestMapping(value = "/login",method = RequestMethod.POST) //插入数据 public String login(String username, String password, String vercode, String role, HttpSession session, Model model) { return loginService.login(username,password,vercode,role,session,model); } @RequestMapping("/loginOut") public String loginOut(HttpSession session) { session.invalidate(); return "redirect:/"; } }请详细解释每一行代码

@RequestMapping(value = "/login",method = RequestMethod.POST) public String login(String username, String password, String vercode, String role, HttpSession session, Model model) { return ...

解释import javax.servlet.http.HttpServletRequest; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class UserController { @RequestMapping("/profile") public String login(HttpServletRequest request) { String username = request.getParameter("username"); // 存储到Session中 request.getSession().setAttribute("username", username); return "Logged in successfully!"; } @RequestMapping("/profile") public String profile(HttpServletRequest request) { // 从Session中获取属性 String username = (String) request.getSession().getAttribute("username"); return "Welcome, " + username + "!"; } @RequestMapping("/logout") public String logout(HttpServletRequest request) { // 从Session中移除属性 request.getSession().removeAttribute("username"); return "Logged out successfully!"; } }

在每个请求的方法中，都使用HttpServletRequest对象来获取请求参数和会话属性，并返回相应的响应字符串。在@RequestMapping注释下，定义了每个方法所映射到的HTTP请求路径。@RestController注释表示这个类是一个REST...

import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; /** * (Admin)表控制层 * * @author makejava * @since 2021-02-04 12:51:19 */ @Controller @RequestMapping("admin") public class AdminController { /** * 服务对象 */ //自动注入业务层的AdminService类 @Autowired @Qualifier("adminService") private AdminService adminService; //修改管理员信息 @RequestMapping("update") public String update(Admin admin) { adminService.update(admin); return "/admin/menus"; } @RequestMapping(value = "/login",method = RequestMethod.GET) public String toLogin(){ return "/admin/index"; } //login业务的访问位置为/admin/login @RequestMapping(value = "/login",method = RequestMethod.POST) public String login(Admin admin, HttpServletRequest request,HttpSession session){ //调用login方法来验证是否是注册用户 boolean loginType = adminService.login(admin.getName(),admin.getPwd()); if(loginType){ //如果验证通过,则将用户信息传到前台 request.setAttribute("admin",admin); session.setAttribute("admin_session",admin); //并跳转到success.jsp页面 return "/admin/main"; }else{ //若不对,则返回 request.setAttribute("message","用户名密码错误"); return "/admin/index"; } } //登出,地址/admin/logout @RequestMapping("logout") public String logout(HttpSession session){ //清除session session.removeAttribute("admin_session"); //重定向到登录页面的跳转方法 return "/admin/index"; }

8. @RequestMapping(value = "/login",method = RequestMethod.POST)：该注解指定了处理登录验证的POST请求的URL路径。 9. adminService.login(admin.getName(),admin.getPwd())：调用AdminService类的login...

@RequestMapping(value="/",method=RequestMethod.GET)

@RequestMapping(value="/",method=RequestMethod.GET) 是一个用于定义请求映射的注解。它指定了一个URL路径为"/"，请求方法为GET的处理方法。以下是一个使用@RequestMapping注解的示例： java @...

package org.example.finance.controller; import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; import org.example.finance.model.Result; import org.example.finance.model.bo.LoginBO; import org.example.finance.model.bo.RegisterBO; import org.example.finance.service.IOrgService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; /** * * 前端控制器 * * * @author Arthur * @since 2021-09-07 */ @Api(value = "组织（公司、银行）相关接口", tags = "组织（公司、银行）相关接口") @RestController @RequestMapping("/finance/org") public class OrgController { @Autowired IOrgService orgService; @ApiOperation(value = "登录接口", notes = "登录接口") @RequestMapping(value = "login", method = RequestMethod.POST) public Result<String> login(@RequestBody LoginBO loginBO) { return orgService.login(loginBO); } @ApiOperation(value = "注册接口", notes = "注册接口") @RequestMapping(value = "register", method = RequestMethod.POST) public Result<String> register(@RequestBody RegisterBO registerBO) { return orgService.register(registerBO); } // @ApiOperation(value = "重新绑定地址接口", notes = "重新绑定地址接口") // @RequestMapping(value = "rebind", method = RequestMethod.GET) // public Result<String> rebind(@RequestParam String username, @RequestParam String address) { // return orgService.rebind(username, address); // } }

这是一个财务管理系统的控制器类，使用了Spring的@RestController和@RequestMapping注解来定义接口路径。该控制器提供了组织（公司、银行）相关的接口，包括登录和注册接口。其中，登录接口使用了@ApiOperation注解...

package com.ldu.controller; import com.ldu.pojo.Admin; import com.ldu.pojo.Goods; import com.ldu.pojo.Orders; import com.ldu.pojo.Purse; import com.ldu.pojo.User; import com.ldu.service.AdminService; import com.ldu.service.GoodsService; import com.ldu.service.OrdersService; import com.ldu.service.PurseService; import com.ldu.service.UserService; import com.ldu.util.GoodsGrid; import com.ldu.util.OrdersGrid; import com.ldu.util.PurseGrid; import com.ldu.util.UserGrid; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; import org.springframework.web.servlet.ModelAndView; import java.util.List; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; /** * 2018-3-7 10:40:38 */ @Controller @RequestMapping(value = "/admin") public class AdminController { @Resource private UserService userService; @Resource private GoodsService goodsService; @Resource private OrdersService ordersService; @Resource private PurseService purseService; @Resource private AdminService adminService; @RequestMapping(value = "", method = RequestMethod.GET) public String login(HttpSession session) { // 清除session //session.invalidate(); return "/admin/login"; } @RequestMapping(value = "/index", method = RequestMethod.POST) public String index(HttpServletRequest request, Admin admins) { Admin myadmin = adminService.findAdmin(admins.getPhone(), admins.getPassword()); if (myadmin != null) { request.getSession().setAttribute("admin", myadmin); return "/admin/index"; } return "/admin/login"; } @RequestMapping(value = "/indexs") public String indexs(HttpServletRequest request) { Admin admin = (Admin) request.getSession().getAttribute("admin"); if (admin != null) { Integer id = admin.getId(); Admin myadmin = adminService.findAdminById(id); request.getSession().setAttribute("admin", myadmin); return "/admin/index"; } return "/admin/login"; }

这是一个 Java 类，定义了一个名为 AdminController 的 Spring MVC 控制器。...该 Java 类还使用了 HttpServletRequest 和 HttpSession 来获取和操作请求和会话信息，并使用了 ModelAndView 来封装返回结果。

@RequestMapping("/login") public String login(@RequestBody User user, @RequestParam String checkCode, HttpServletRequest request) throws IOException { HttpSession session = request.getSession(); String checkCodeGen = (String) session.getAttribute("checkCodeGen"); if (checkCodeGen.equalsIgnoreCase(checkCode)){ User result = userService.login(user.getUserName(), user.getPassword()); if (result != null){ session.setAttribute("userName",result.getUserName()); return "success" ; } }else{ return "验证码错误"; } return "用户名或密码错误"; } @RequestMapping("/checkCode") public void checkCode(HttpServletRequest request, HttpServletResponse response) throws IOException { String checkCodeGen = CheckCodeUtil.generateVerifyCode(4); HttpSession session = request.getSession(); session.setAttribute("checkCodeGen",checkCodeGen); System.out.println(session.getId()); ServletOutputStream os = response.getOutputStream(); CheckCodeUtil.outputImage(100,40,os,checkCodeGen); } @RequestMapping("/checkLogin") public String checkLogin(HttpSession session){ return (String)session.getAttribute("userName"); } @RequestMapping("/logout") public String logout(HttpSession session){ session.setAttribute("userName",null); return "success"; }

- @RequestMapping是一个注解，用于映射请求的URL路径和Controller方法。 - @RequestBody注解用于将request请求的body部分转换成Java对象，并且可以通过@RequestParam注解获取请求参数。 - HttpSession是一个接口，...

使用ResponseEntity<>改写以下代码：@Controller @RequestMapping("/user") public class UserController { @RequestMapping(value = "/login", method = RequestMethod.POST) public ModelAndView login(User user,HttpSession httpSession) { ModelAndView modelAndView = new ModelAndView(); if (user.getUserName().equals("张三") && user.getPassword().equals("123")) { //modelAndView.addObject("user", user); httpSession.setAttribute("user",user); modelAndView.setViewName("success"); } else { modelAndView.setViewName("fail"); } return modelAndView; } }

public ResponseEntity<String> login(User user, HttpSession httpSession) { if (user.getUserName().equals("张三") && user.getPassword().equals("123")) { httpSession.setAttribute("user", user); ...

@Controller @RequestMapping("/file") public class FileController extends BaseController { /** * 文件上传 */ @RequestMapping(value = "/upload", method = RequestMethod.POST) @ResponseBody public JsonResult upload(@RequestParam("file")MultipartFile file, @RequestParam("key")String key, HttpSession session){ Map<String,String> map = new HashMap<>(); try { map = FileUtil.upload(file); } catch (Exception e) { e.printStackTrace(); return JsonResult.error("上传失败"); } String filePath = map.get("filePath"); //将图片URL存在session中 String sessionKey = Constant.SESSION_IMG_PREFIX + key; List<String> imgList = (List<String>) session.getAttribute(sessionKey); if(imgList == null){ imgList = new ArrayList<>(); } imgList.add(filePath); session.setAttribute(sessionKey,imgList); return JsonResult.success("上传成功"); } }

该控制器对应的请求 URL 是 "/file/upload"，请求方法为 POST。在请求参数中，有一个名为 "file" 的文件参数和一个名为 "key" 的字符串参数。其中，"file" 参数用于上传文件，"key" 参数用于标识上传的文件类型。在...

@RequestMapping(value = "/songList", method = RequestMethod.GET) public Object recommendSongList(HttpServletRequest req, @RequestParam(value = "userId",defaultValue = " ") String userId){ System.out.println("-------------userId=" + userId); //如果userId为空就返回所有歌单 if(StringUtils.isBlank(userId)) { return songListService.allSongList(); }else{ return recommendSongListService.recommendSongListByCollect(Integer.parseInt(userId)); } } 如何为该段添加去重

public Object recommendSongList(HttpServletRequest req, @RequestParam(value = "userId",defaultValue = " ") String userId){ System.out.println("-------------userId=" + userId); //如果userId为空就返回...

@RequestMapping(value = "/upload", method = RequestMethod.POST) @ResponseBody public JsonResult upload(@RequestParam("file")MultipartFile file, @RequestParam("key")String key, HttpSession session){ Map<String,String> map = new HashMap<>(); try { map = FileUtil.upload(file); } catch (Exception e) { e.printStackTrace(); return JsonResult.error("上传失败"); }

请求方法为POST，接收两个参数：一个是文件对象，一个是字符串类型的key值。上传成功后，返回一个JSON格式的数据对象。其中，调用了FileUtil.upload()方法来处理上传的文件，并将处理后的结果存储在一个Map对象中。...

@RequestMapping(value = /book)

@RequestMapping(value = "", method = RequestMethod.POST) public String addBook(@RequestBody Book book) { // 处理添加书籍的逻辑 return "redirect:/book"; } } 上述代码中，类级别的@...

@RestController public class AdminController { @Autowired private AdminService adminService; @RequestMapping(value = "/admin/login/status",method = RequestMethod.POST) public Object loginStatus(HttpServletRequest request, HttpSession session){ JSONObject jsonObject = new JSONObject(); String name = request.getParameter("name"); String password = request.getParameter("password"); boolean flag = adminService.verifyPassword(name,password); if (flag){ jsonObject.put(Consts.CODE,1); jsonObject.put(Consts.MSG,"登录成功"); session.setAttribute(Consts.NAME,name); return jsonObject; } jsonObject.put(Consts.CODE,0); jsonObject.put(Consts.MSG,"用户名或密码错误"); return jsonObject; } }这段代码什么意思

方法中使用了HttpServletRequest和HttpSession对象，前者用于获取请求中的参数，后者用于在服务器端存储会话数据。如果管理员的用户名和密码正确，则返回一个JSON对象，其中CODE为1表示成功，MSG为"登录成功"，并...

@RequestMapping(value = "export", method = RequestMethod.GET) public void exportToExcel(HttpServletRequest request, HttpServletResponse response, HttpSession session) throws IOException { System.out.println("111"); List<Attendance> att

该方法的参数包括 HttpServletRequest、HttpServletResponse 和 HttpSession。在方法体中，首先输出 "111"，然后创建了一个名为 att 的 List<Attendance> 对象。这段代码还没有完整，如果您有完整的代码，请提供更多...

@RequestMapping(value = "/uploadWxImg", method = RequestMethod.POST) public @ResponseBody Object uploadWxImg(@RequestParam("img") MultipartFile file, HttpServletRequest request) throws IllegalStateException, IOException { Map<String, Object> map = new HashMap<String, Object>(); String name = file.getOriginalFilename(); String imgAbsolutePath = MyTool.SaveImg(file, MyTool.getImg(), name); map.put("code", 0); map.put("message", "上传成功"); map.put("data", name); System.out.println(map.toString()); return map; }

这段代码是一个基于SpringMVC框架的文件上传接口，使用POST方法接收MultipartFile类型的文件参数。其中@RequestParam注解用于指定上传文件的参数名。接口会将上传的文件保存到服务器指定的目录下，并返回一个包含...

@RequestMapping("/userRegister") public String userRegister(User user, HttpServletRequest request, HttpSession session) { userMapper.add(user); return "user-login"; } }

其中，@RequestMapping("/userRegister")注解表示该方法对应的请求URL是"/userRegister"。参数User user表示接收用户提交的注册信息，HttpServletRequest request和HttpSession session分别表示当前请求和会话对象。

解释@Controller @RequestMapping("/admin") public class AdminController { @Resource private IAdminService adminService; /** * 管理员登录 * * @param request * @return */ @RequestMapping(value = "/onLoginAdmin", method = RequestMethod.POST, produces = "text/html;charset=UTF-8") @ResponseBody public String onLoginAdmin(HttpServletRequest request) { ResultVo vo = new ResultVo(); Map<String, Object> map = new HashMap<String, Object>(); String loginNumber = request.getParameter("loginNumber"); String password = request.getParameter("password"); try { Admin admin = adminService.getAdminForLoginNumber(loginNumber); if (admin == null) { map.put("result", 1); map.put("msg", "账号错误"); } else { if (!password.equals(admin.getPassword())) { map.put("result", 1); map.put("msg", "密码错误"); } else { map.put("result", 0); map.put("msg", "登录成功"); map.put("user", admin); } } } catch (Exception e) { vo.setSuccess(false); vo.setErrorMsg(e.toString()); } vo.setData(map); return vo.toJson(); } }

这段代码是一个基于Spring框架的Java类，使用了@Controller和@RequestMapping注解来定义一个管理员控制器。其中@RequestMapping("/admin")指定了该控制器处理的请求路径前缀为/admin。其中，onLoginAdmin()方法处理...

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